In Time Sequence questions, you are given a question based on date and time. It is required to find out either date or no. of days satisfying conditions in specific question.

(I). Kamal is available at home from 12 noon to 4 p.m. on Tuesday, Thursday and Sunday.(II). His younger brother Navin is available at home on Monday, Thursday, Friday and Sunday between 10 a.m. to 2 p.m.(III). The eldest brother Rajiv is available between 9 a.m. to 12 noon on Monday, Wednesday and Thursday and 2 p.m. to 4 p.m. on Friday, Saturday and Sunday.

For how many days only one brother is available at a particular time in a week ?